{"id":"EUVD-2026-91762","revision":null,"records":[{"revision":"a8945d5193ac4e8689851e2240d644bb","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-104854","aliases":[],"title":"Nx daemon and plugin worker sockets are accessible to other local users","description":"Nx is a monorepo solution for TypeScript and polyglot codebases. From 14.6.0 until 22.7.9 and 23.1.2, Nx creates Unix domain sockets for its daemon and isolated plugin workers in shared temporary locations without owner-only directory and socket permissions. Another unprivileged local account on a shared build server, developer host, or multi-user container can discover and connect to a running socket because the transport performs no authentication and relies on filesystem containment. The daemon's PROCESS_IN_BACKGROUND request accepts a module path and invokes its default export, allowing a caller that controls a file to execute code as the account running Nx; other handlers can expose workspace file contents, project graphs, and task hashes. Disabling the daemon alone does not remove the vulnerable plugin-worker sockets, while single-user machines without another local account are not exposed. This issue is fixed in versions 22.7.9 and 23.1.2.","state":0,"publishedAt":"2026-10-02T16:59:48.238+00:00","modifiedAt":"2026-10-02T17:28:06.022+00:00","affected":[{"ecosystem":"Vendor product","name":"nx","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"nrwl\",\n                    \"product\": \"nx\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 14.6.0, < 22.7.9\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 23.0.0, < 23.1.2\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":8.5,"severity":"HIGH"}],"references":["https://github.com/nrwl/nx/security/advisories/GHSA-w3vv-58gj-gw77","https://github.com/nrwl/nx/pull/36370","https://github.com/nrwl/nx/commit/3298fd8b2dd066167eb3cc0410643994a59b0bba","https://github.com/nrwl/nx/commit/63e1abb287a3d69f8ba981828a1de325d0d3dc68","https://github.com/nrwl/nx/commit/71c2253b6aac23b008e192c4e2642c42a5e07545","https://github.com/nrwl/nx/releases/tag/22.7.9","https://github.com/nrwl/nx/releases/tag/23.1.2"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-104854","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-104854","identifiers":["CVE-2026-104854"]},"retained":false,"historicalAffected":[]},{"revision":"c9fb6cbfd39f4d3cb6ad5d00fdf4ef9f","observedAt":"2026-11-11T05:30:32.752+00:00","statement":{"source":"euvd","id":"EUVD-2026-91762","aliases":["CVE-2026-104854","GHSA-w3vv-58gj-gw77"],"title":"Nx is a monorepo solution for TypeScript and polyglot codebases. From 14.6.0 until 22.7.9 and 23.1.2, Nx creates Unix domain sockets for its daemon and isolated plugin workers in shared temporary locations without owner-only directory and s…","description":"Nx is a monorepo solution for TypeScript and polyglot codebases. From 14.6.0 until 22.7.9 and 23.1.2, Nx creates Unix domain sockets for its daemon and isolated plugin workers in shared temporary locations without owner-only directory and socket permissions. Another unprivileged local account on a shared build server, developer host, or multi-user container can discover and connect to a running socket because the transport performs no authentication and relies on filesystem containment. The daemon's PROCESS_IN_BACKGROUND request accepts a module path and invokes its default export, allowing a caller that controls a file to execute code as the account running Nx; other handlers can expose workspace file contents, project graphs, and task hashes. Disabling the daemon alone does not remove the vulnerable plugin-worker sockets, while single-user machines without another local account are not exposed. This issue is fixed in versions 22.7.9 and 23.1.2.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":8.5,"severity":null}],"references":["https://github.com/nrwl/nx/security/advisories/GHSA-w3vv-58gj-gw77","https://github.com/nrwl/nx/pull/36370","https://github.com/nrwl/nx/commit/3298fd8b2dd066167eb3cc0410643994a59b0bba","https://github.com/nrwl/nx/commit/63e1abb287a3d69f8ba981828a1de325d0d3dc68","https://github.com/nrwl/nx/commit/71c2253b6aac23b008e192c4e2642c42a5e07545","https://github.com/nrwl/nx/releases/tag/22.7.9","https://github.com/nrwl/nx/releases/tag/23.1.2"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-91762","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Oct 2, 2026, 4:59:48 PM","dateUpdated":"Oct 2, 2026, 5:28:06 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-91762","identifiers":["EUVD-2026-91762","CVE-2026-104854","GHSA-w3vv-58gj-gw77"]},"retained":false,"historicalAffected":[]},{"revision":"21523f46df2c4f5f80367bd3858f6309","observedAt":"2026-10-25T04:17:29.458+00:00","statement":{"source":"nvd","id":"CVE-2026-104854","aliases":[],"title":"Nx is a monorepo solution for TypeScript and polyglot codebases. From 14.6.0 until 22.7.9 and 23.1.2, Nx creates Unix domain sockets for its daemon and isolated plugin workers in shared temporary locations without owner-only directory and s…","description":"Nx is a monorepo solution for TypeScript and polyglot codebases. From 14.6.0 until 22.7.9 and 23.1.2, Nx creates Unix domain sockets for its daemon and isolated plugin workers in shared temporary locations without owner-only directory and socket permissions. Another unprivileged local account on a shared build server, developer host, or multi-user container can discover and connect to a running socket because the transport performs no authentication and relies on filesystem containment. The daemon's PROCESS_IN_BACKGROUND request accepts a module path and invokes its default export, allowing a caller that controls a file to execute code as the account running Nx; other handlers can expose workspace file contents, project graphs, and task hashes. Disabling the daemon alone does not remove the vulnerable plugin-worker sockets, while single-user machines without another local account are not exposed. This issue is fixed in versions 22.7.9 and 23.1.2.","state":0,"publishedAt":"2026-10-02T17:17:04.07+00:00","modifiedAt":"2026-10-02T18:17:01.96+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · security-advisories@github.com · Secondary","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","score":8.5,"severity":"HIGH"}],"references":["https://github.com/nrwl/nx/commit/3298fd8b2dd066167eb3cc0410643994a59b0bba","https://github.com/nrwl/nx/commit/63e1abb287a3d69f8ba981828a1de325d0d3dc68","https://github.com/nrwl/nx/commit/71c2253b6aac23b008e192c4e2642c42a5e07545","https://github.com/nrwl/nx/pull/36370","https://github.com/nrwl/nx/releases/tag/22.7.9","https://github.com/nrwl/nx/releases/tag/23.1.2","https://github.com/nrwl/nx/security/advisories/GHSA-w3vv-58gj-gw77"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-104854","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Awaiting Analysis","weaknesses":["CWE-269","CWE-732"],"productCriteria":[],"sourceDates":{"published":"2026-10-02T17:17:04.070","lastModified":"2026-10-02T18:17:01.960"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-104854","identifiers":["CVE-2026-104854"]},"retained":false,"historicalAffected":[]},{"revision":"c40cbdd5ecd94df1b907dacae0f81d8b","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-w3vv-58gj-gw77","aliases":["CVE-2026-104854"],"title":"Nx daemon and plugin worker sockets are accessible to other local users","description":"## Summary\n\nNx creates the Unix domain sockets for its daemon and its plugin workers in a shared temporary directory with default permissions, so any other user on the same machine can connect to them. The daemon accepts a `PROCESS_IN_BACKGROUND` request that names a module to load and invokes its default export, which turns socket access into code execution inside the daemon process. On a multi-user machine — a shared build server, a shared developer box, or a container running several accounts — one local user can execute code as another user running Nx.\n\n## Severity\n\n\nExploitable by any other unprivileged local user on a shared host while a daemon or plugin worker is running, with no user interaction. There is no known evidence of exploitation in the wild.\n\n## Affected & Patched Versions\n\n| Package | Vulnerable | Patched |\n| --- | --- | --- |\n| `nx` | `>= 14.6.0, < 22.7.9`; `>= 23.0.0, < 23.1.2` | `22.7.9`, `23.1.2` |\n\nEvery version in the ranges above is affected. The lower bound is 14.6.0, when the daemon request handler that turns socket access into code execution was added.\n\n> [!IMPORTANT]\n> Single-user machines are not exposed. The vulnerability requires another local account on the same host, so an ordinary laptop with one user account is unaffected — the exposure is shared CI runners, shared build and development servers, and containers or images that run more than one uid.\n>\n> Disabling the daemon is not sufficient on its own: the plugin worker sockets used by plugin isolation are created in the same directory with the same permissions, and those are used during normal command runs whether or not the daemon is enabled.\n\n## Remediation\n\nUpgrade to **22.7.9** (22.x line) or **23.1.2** (23.x line) or later:\n\n```\nnx migrate 23.1.2\n```\n\nOn a shared machine, run `nx reset` after upgrading so that any sockets and directories created by an older version are removed rather than reused.\n\nIf you cannot upgrade, point `NX_SOCKET_DIR` at a directory you own with mode `0700`, which is already honoured by the vulnerable versions, and disable the daemon with `NX_DAEMON=false` to reduce the reachable surface — though, per the callout above, that does not remove the plugin worker sockets.\n\n## Details\n\nThe daemon and the plugin workers communicate over Unix domain sockets placed in a subdirectory of the shared OS temporary directory. That directory is created with default permissions, which on a typical system leave it readable and traversable by every user on the machine, and nothing narrows the socket files themselves. The directory name is derived from a hash of the workspace path and the process id, so it is unique but not secret — any local user who lists the temporary directory can find it.\n\nThe connection carries no authentication: the containment is meant to be the filesystem permissions alone, and those are too broad. Any local process that can reach the socket is treated as a fully trusted client.\n\nThe impact of that access is set by what the daemon's request handlers allow. One handler takes a module path from the request and loads and invokes it; because an absolute path resolves regardless of the lookup constraints in place, a caller who can write a file anywhere on the machine — their own home directory suffices — and connect to the socket can have the daemon execute it, as the user running the daemon. Other handlers expose workspace file contents, the project graph, and task hashes to the same unauthenticated caller.\n\n## Credits\n\nReported by researchers at the University of Sydney:\n\n- Liyi\n- Ziyue\n- Strick\n- Maurice\n- Chenchen","state":0,"publishedAt":"2026-10-05T23:28:43+00:00","modifiedAt":"2026-10-05T23:45:08.858653+00:00","affected":[{"ecosystem":"npm","name":"nx","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"14.6.0"},{"kind":"fixed","version":"22.7.9"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"nx","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"23.0.0"},{"kind":"fixed","version":"23.1.2"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V4","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/nrwl/nx/security/advisories/GHSA-w3vv-58gj-gw77","https://nvd.nist.gov/vuln/detail/CVE-2026-104854","https://github.com/nrwl/nx/pull/36370","https://github.com/nrwl/nx/commit/3298fd8b2dd066167eb3cc0410643994a59b0bba","https://github.com/nrwl/nx/commit/63e1abb287a3d69f8ba981828a1de325d0d3dc68","https://github.com/nrwl/nx/commit/71c2253b6aac23b008e192c4e2642c42a5e07545","https://github.com/nrwl/nx","https://github.com/nrwl/nx/releases/tag/22.7.9","https://github.com/nrwl/nx/releases/tag/23.1.2"],"sourceUrl":"https://github.com/advisories/GHSA-w3vv-58gj-gw77","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-w3vv-58gj-gw77","identifiers":["GHSA-w3vv-58gj-gw77","CVE-2026-104854"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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